Method of manufacturing electrically fused corundum

Details Method of manufacturing electrically fused corundum Method of manufacturing electrically fused corundum

1977-12-14

1979-12-04

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

To form particulate product

106 734, 264233, 264327, 264332, 264344, C04B 3510

Patent

active

041772350

ABSTRACT:
A composition comprising .alpha.-alumina in a concentration of at least 99.95 weight percent and process for producing such .alpha.-alumina wherein alumina having an alkali metal content between 0.05 and 0.60 weight percent and Al.sub.2 O.sub.3 content of more than 95 weight percent is electrically fused with silica and additional alkali, if desired, in an electric arc furnace, the heated composition is cooled, comminuted and the so-formed glass phase is removed from an alumina containing phase by mechanical or chemical means.

REFERENCES:
patent: 3479237 (1969-11-01), Bergh et al.
patent: 3839111 (1974-10-01), Ham et al.
patent: 3841904 (1974-10-01), Chiang
Refractories and Their Uses, pp. 137, 138, 139 (1972).

Affiliated with

Also associated with

Rating

Method of manufacturing electrically fused corundum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing electrically fused corundum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing electrically fused corundum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-91586